dmolony-DiskBrowser/src/com/bytezone/diskbrowser/prodos/ProdosDirectory.java

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2020-02-09 13:13:33 +00:00
package com.bytezone.diskbrowser.prodos;
import java.text.SimpleDateFormat;
import java.util.GregorianCalendar;
import com.bytezone.diskbrowser.applefile.AbstractFile;
import com.bytezone.diskbrowser.disk.FormattedDisk;
import com.bytezone.diskbrowser.utilities.HexFormatter;
// -----------------------------------------------------------------------------------//
class ProdosDirectory extends AbstractFile implements ProdosConstants
// -----------------------------------------------------------------------------------//
{
private static final String NO_DATE = "<NO DATE>";
private static final String newLine = String.format ("%n");
private static final String newLine2 = newLine + newLine;
private static final SimpleDateFormat sdf = new SimpleDateFormat ("d-MMM-yy");
private static final SimpleDateFormat stf = new SimpleDateFormat ("H:mm");
private final ProdosDisk parentFD;
private final int totalBlocks;
private final int freeBlocks;
private final int usedBlocks;
// ---------------------------------------------------------------------------------//
ProdosDirectory (FormattedDisk parent, String name, byte[] buffer, int totalBlocks,
int freeBlocks, int usedBlocks)
// ---------------------------------------------------------------------------------//
{
super (name, buffer);
this.parentFD = (ProdosDisk) parent;
this.totalBlocks = totalBlocks;
this.freeBlocks = freeBlocks;
this.usedBlocks = usedBlocks;
}
// ---------------------------------------------------------------------------------//
@Override
public String getText ()
// ---------------------------------------------------------------------------------//
{
StringBuffer text = new StringBuffer ();
text.append ("Disk : " + parentFD.getDisplayPath () + newLine2);
for (int i = 0; i < buffer.length; i += 39)
{
int storageType = (buffer[i] & 0xF0) >> 4;
if (storageType == 0)
continue; // break??
int nameLength = buffer[i] & 0x0F;
String filename = HexFormatter.getString (buffer, i + 1, nameLength);
String subType = "";
String locked;
switch (storageType)
{
case ProdosConstants.VOLUME_HEADER:
case ProdosConstants.SUBDIRECTORY_HEADER:
text.append ("/" + filename + newLine2);
text.append (" NAME TYPE BLOCKS "
+ "MODIFIED CREATED ENDFILE SUBTYPE" + newLine2);
break;
case ProdosConstants.FREE:
case ProdosConstants.SEEDLING:
case ProdosConstants.SAPLING:
case ProdosConstants.TREE:
case ProdosConstants.PASCAL_ON_PROFILE:
case ProdosConstants.GSOS_EXTENDED_FILE:
case ProdosConstants.SUBDIRECTORY:
int type = buffer[i + 16] & 0xFF;
int blocks = HexFormatter.intValue (buffer[i + 19], buffer[i + 20]);
GregorianCalendar created = HexFormatter.getAppleDate (buffer, i + 24);
String dateC = created == null ? NO_DATE
: sdf.format (created.getTime ()).toUpperCase ().replace (".", "");
String timeC = created == null ? "" : stf.format (created.getTime ());
GregorianCalendar modified = HexFormatter.getAppleDate (buffer, i + 33);
String dateM = modified == null ? NO_DATE
: sdf.format (modified.getTime ()).toUpperCase ().replace (".", "");
String timeM = modified == null ? "" : stf.format (modified.getTime ());
int eof =
HexFormatter.intValue (buffer[i + 21], buffer[i + 22], buffer[i + 23]);
int fileType = buffer[i + 16] & 0xFF;
locked = (buffer[i + 30] & 0xE0) == 0xE0 ? " " : "*";
switch (fileType)
{
case FILE_TYPE_TEXT:
int aux = HexFormatter.intValue (buffer[i + 31], buffer[i + 32]);
subType = String.format ("R=%5d", aux);
break;
case FILE_TYPE_BINARY:
case FILE_TYPE_PNT:
case FILE_TYPE_PIC:
case FILE_TYPE_FOT:
aux = HexFormatter.intValue (buffer[i + 31], buffer[i + 32]);
subType = String.format ("A=$%4X", aux);
break;
case FILE_TYPE_AWP:
aux = HexFormatter.intValue (buffer[i + 32], buffer[i + 31]); // backwards!
if (aux != 0)
filename = convert (filename, aux);
break;
default:
subType = "";
}
text.append (String.format ("%s%-15s %3s %5d %9s %5s %9s %5s %8d %7s%n",
locked, filename, ProdosConstants.fileTypes[type], blocks, dateM, timeM,
dateC, timeC, eof, subType));
break;
default:
text.append (" <Unknown strage type : " + storageType + newLine);
}
}
text.append (
String.format ("%nBLOCKS FREE:%5d BLOCKS USED:%5d TOTAL BLOCKS:%5d%n",
freeBlocks, usedBlocks, totalBlocks));
return text.toString ();
}
// ---------------------------------------------------------------------------------//
private String convert (String name, int flags)
// ---------------------------------------------------------------------------------//
{
char[] newName = name.toCharArray ();
for (int i = 0, weight = 0x8000; i < newName.length; i++, weight >>>= 1)
{
if ((flags & weight) != 0)
{
if (newName[i] == '.')
newName[i] = ' ';
else if (newName[i] >= 'A' && newName[i] <= 'Z')
newName[i] += 32;
}
}
return new String (newName);
}
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}